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1099 Contractor in Nebraska with a Illinois Client: Where Do You File?

Home state, plus the client state if you work thereNo withholding — 1099

Answer

Pay Nebraska by instalments, and watch your Illinois days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. Nebraska taxes the full profit, Illinois taxes the on-site share, and the Nebraska credit reconciles them.

Last verified

The client's location is the wrong thing to track. What matters is where you were sitting when you did the work — which is why a contractor's exposure to Illinois is measured in days on the ground rather than in invoices sent.

Illinois allows a 30-day safe harbour before the obligation attaches. Illinois does not require an employer to withhold from a nonresident who works in Illinois for 30 or fewer days in the year. The day count is a withholding safe harbour; a nonresident who exceeds it owes Illinois tax on the Illinois-source wages.

What you file

  1. 1Quarterly estimated payments · Nebraska

    Make quarterly estimated payments to Nebraska Department of Revenue on your full self-employment income — nothing is withheld from a 1099.

  2. 2Nonresident return · IllinoisForm IL-1040 with Schedule NR

    File a Illinois nonresident return only if you performed services inside Illinois. Illinois does not require an employer to withhold from a nonresident who works in Illinois for 30 or fewer days in the year. The day count is a withholding safe harbour; a nonresident who exceeds it owes Illinois tax on the Illinois-source wages.

  3. 3Resident return · NebraskaForm 1040N Schedule II

    File the Nebraska resident return last and claim the credit for any tax paid to Illinois.

The two states, side by side

 NebraskaIllinois
Taxes wagesYes — graduatedYes — flat
Reciprocity partnersNone4 (Form IL-W-5-NR)
Convenience ruleYes — general ruleNo
Nonresident returnForm 1040N with Schedule IIIForm IL-1040 with Schedule NR
Credit for other-state taxForm 1040N Schedule IISchedule CR
Nonresident safe harbourNone published30 days
Local income taxNoNo
Revenue departmentNebraska Department of RevenueIllinois Department of Revenue
Last verified

The other direction

Reversing the commute does not always reverse the answer. Living in Illinois and working in Nebraska gives:Home state, plus the client state if you work there.

Illinois to Nebraska →

Same two states, different situation

The withholding answer turns on how you are paid and where the work happens, not only on which two states are involved.

Other Nebraska pairs

Questions people actually ask

I live in Nebraska and my client is in Illinois. Do I have to file a Illinois tax return?

Pay Nebraska by instalments, and watch your Illinois days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. Nebraska taxes the full profit, Illinois taxes the on-site share, and the Nebraska credit reconciles them.

Do reciprocity agreements help a 1099 contractor?

No. Every state reciprocity agreement in the country is an arrangement about wage withholding between two revenue departments, and a 1099 has no withholding to switch off. Whether Nebraska and Illinois hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.

How current is this?

The Nebraska and Illinois rules on this page were last checked against Nebraska Department of Revenue and Illinois Department of Revenue on 2026-08-07. We re-check the full grid every December after state legislative sessions close, and re-check the convenience-of-the-employer states quarterly because that is where the rules move fastest.

Sources

Every fact above comes from the revenue department that publishes the rule. We do not cite secondary summaries, and we do not restate a figure we could not find at source.